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Finding the Fourth Proportional to 8,753.13, 12,079.64 and 4,976.93

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Solution

The fourth proportional to 8,753.13, 12,079.64 and 4,976.93 is: 6,868.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.13 : 12,079.64 = 4,976.93 : x
  2. Step 2: Convert to fraction form
    8,753.13/12,079.64 = 4,976.93/x
  3. Step 3: Cross multiply
    8,753.13x = 12,079.64 × 4,976.93
  4. Step 4: Simplify right side
    8,753.13x = 60,119,522.71
  5. Step 5: Solve for x
    x = 60,119,522.71/8,753.13
  6. Step 6: Final answer
    x = 6,868.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.